DEBT - 2018 Coty Credit Agreement (Details)				12 Months Ended
	Jun. 27, 2019 USD ($)	Jun. 26, 2019	Apr. 05, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)
Line of Credit Facility [Line Items]
Deferred financing fees write-off				$ 0.0	$ 2,000,000.0	$ 0.0
Line of Credit
Line of Credit Facility [Line Items]
Deferred financing fees write-off				$ 0.0	$ 8,700,000	$ 0.0
2018 Coty Revolving Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Borrowing capacity	$ 2,750,000,000.0
Decrease in maximum borrowing capacity	500,000,000.0
Deferred financing fees write-off	$ 3,800,000
2018 Coty Revolving Credit Facility | Line of Credit | Letter of credit
Line of Credit Facility [Line Items]
Borrowing capacity			$ 150,000,000.0
2018 Coty Revolving Credit Facility | Line of Credit | Swingline loans
Line of Credit Facility [Line Items]
Borrowing capacity			150,000,000.0
2018 Coty Revolving Credit Facility | Line of Credit | Incurrence Incremental Facilities
Line of Credit Facility [Line Items]
Borrowing capacity			$ 1,700,000,000.0
Total net leverage ratio			3.00
March 31, 2022
Line of Credit Facility [Line Items]
Total net leverage ratio				5
March 31, 2022 | 2018 Coty Revolving Credit Facility | Line of Credit | Incurrence Incremental Facilities
Line of Credit Facility [Line Items]
Total net leverage ratio	5.0	5.25